ostracize vs prohibit

ostracize

verb
  • To ban a person from a city for five or ten years through the procedure of ostracism. 

  • To exclude a person from a community or from society by not communicating with them or by refusing to acknowledge their presence; to refuse to associate with or talk to; to shun. 

prohibit

verb
  • To forbid, disallow, or proscribe officially; to make illegal or illicit. 

How often have the words ostracize and prohibit occurred in a corpus of books? (source: Google Ngram Viewer )